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About javx.comm.... reading the serial port

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chanda

Posts: 11
Nickname: rcss
Registered: Sep, 2004

About javx.comm.... reading the serial port

Posted: Jan 28, 2005 12:38 AM

My phone is connected to modem through a serial port

I want to read the modem after the phone ring has indicated,

I am using javax.comm. package

If phone rings then it shows that phone is ringing

But my problem is, It doesnt reads the data after I pick the phone

Please suggest me what should I do?.

wether i have to go for event listning or use a Thread which continously monitor the serial port ...

Thanks in advance

My code>

import javax.comm.*;
import java.io.IOException;
import java.util.TooManyListenersException;
import java.io.*;

public class PhoneListener1 implements SerialPortEventListener
{
SerialPort modem;
private InputStream inputStream;

public PhoneListener1()
{
}

public void setup()
{
String portName = "COM3";

try
{
CommPortIdentifier cpi = CommPortIdentifier.getPortIdentifier(portName);

if (cpi.getPortType() == CommPortIdentifier.PORT_SERIAL)
{
modem = (SerialPort)cpi.open("Phone Listener", 1000);
inputStream = modem.getInputStream();

modem.addEventListener(this);

modem.notifyOnRingIndicator(true);
modem.notifyOnDataAvailable(true);
}
}
catch (NoSuchPortException e)
{
System.err.println("Usage: java PhoneListener port_name");
}
catch (PortInUseException e)
{
System.err.println(e);
}
catch (IOException ioe)
{
System.out.println("in catch3");
}
catch (TooManyListenersException e){ }
}

public void close()
{
try
{
modem.removeEventListener();
modem.close();
}
catch(Exception e)
{
System.out.println(e);
}
}

public static void main(String[] args) throws InterruptedException, IOException
{
System.out.println("in main");

PhoneListener1 pl = new PhoneListener1();

while(true)
{
pl.setup();

System.out.println("Press ENTER to stop");

System.in.read(new byte[10]);

pl.close();

}
}

public void serialEvent(SerialPortEvent evt)
{

if (evt.getEventType() == SerialPortEvent.RI)
{
System.out.println("Ringing...");
}

if (evt.getEventType() == SerialPortEvent.DATA_AVAILABLE)
{
System.out.println("Data available...");
byte[] readBuffer = new byte[8];

try
{
while (inputStream.available() > 0)
{
int numBytes = inputStream.read(readBuffer);
System.out.println("The read value in integer::" + numBytes);
}
}

catch (IOException ioe)
{
System.out.println("ReaderClient: Caught IOException: " + ioe.getMessage());
}
}
}
}

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